The Urban Dictionary Mug

Blind grinding is a phenomenon popular among sightless and partially-sighted singles in the UK and some parts of Europe, now increasingly popular among sightless singles in the United States.

Like swinging, the event usually takes place in a private residence.

Blind grinds are organized over the internet. Men or women submit their email addresses and genders to a Blind Grind website, along with a chosen name (real names are never used). On a daily/weekly/monthly basis, the Blind Grind server software randomly chooses between ten and fifty individuals from its database and sends them the address of a certified Blind Grind location. There is usually a 50:50 gender balance, but 'Big Blind Gay Grind' (BBGG) groups also exist.

Upon arriving at their location, the participants are guided into large dark rooms (e.g. garages, barns) containing multiple inflatable beds. Music is usually played. Oils and lubricants are provided. The participants proceed to have anonymous sex with multiple partners for hours.

Recent Blind Grind controversies include a group in Paris who were infiltrated by sighted pornographers who participated in and recorded the events for years.

It is estimated that at due to sighted infiltration of the blind grind phenomenon, at least 2% of the amateurpornography on the internet now involves unwitting sightless men and women. You can tell by the presence of i) funky-ass eyes and ii) unkempt pubic hair.